/*
 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LOS_PLIMITS_H
#define _LOS_PLIMITS_H

#include "los_list.h"
#include "los_typedef.h"
#include "los_sched_pri.h"
#include "proc_fs.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/* proc limit set lock */
extern SPIN_LOCK_S g_plimitsSpin;
#define PLIMITS_LOCK(state)       LOS_SpinLockSave(&g_plimitsSpin, &(state))
#define PLIMITS_UNLOCK(state)     LOS_SpinUnlockRestore(&g_plimitsSpin, state)
#define PLIMITS_UNLOCK_NOSCHED(state)     LOS_SpinUnlockNoSchedRestore(&g_plimitsSpin, state)

#define PLIMITS_MIN_PERIOD_IN_US 1000000
#define PLIMITS_MIN_QUOTA_IN_US        1
#define PLIMITS_DELETE_WAIT_TIME    1000

enum ProcLimiterId {
    PROCESS_LIMITER_GENERAL = 0,
    PROCESS_LIMITER_ID_PIDS,
    PROCESS_LIMITER_ID_MEM,
    PROCESS_LIMITER_ID_SCHED,
    PROCESS_LIMITER_ID_IPC,
    PROCESS_LIMITER_ID_DEV,
    PROCESS_LIMITER_COUNT,
};

typedef struct ProcLimiter {
    struct ProcLimiter *parent;
    LOS_DL_LIST childList;
    UINT8 id;
    void *private;
    UINT32 pageCount;
} ProcLimiter;

typedef struct ProcLimiterSet {
    struct ProcLimiterSet *parent;
    LOS_DL_LIST childList;
    ProcLimiter *procLimiterList[PROCESS_LIMITER_COUNT];
    UINT32 mask;
    UINT8 level;
} ProcLimiterSet;

extern BOOL g_isInitProcLimiterSet;
extern ProcLimiterSet g_procLimiterSet;
extern ProcLimiterSet *g_procLimiterSetArray[LOSCFG_BASE_CORE_PROCESS_LIMIT];
extern UINT64 g_plimitsTickTime;

static inline int ProcLimiterSetAllowWrite(ProcLimiterSet *procLimiterSet)
{
    return (procLimiterSet != &g_procLimiterSet);
}

static inline ProcLimiterSet *GetCurrProcLimiterSet(LosTaskCB *runTask)
{
    return g_procLimiterSetArray[runTask->processID];
}

void OsProcLimiterSetInit(void);
void ProcLimiterSetRootInit(void);
void OsPlimitsUpdateTime(void);
ProcLimiter *ProcLimitsAllocLimiter(enum ProcLimiterId plimiterId);
void ProcLimiterSetFree(ProcLimiterSet *procLimiterSet);
ProcLimiterSet *ProcLimiterSetCreateFromParent(ProcLimiterSet *parentProcLimiterSet);
int ProcLimiterSetAddLimiter(ProcLimiterSet *currProcLimiterSet, enum ProcLimiterId plimiterId);
void ProcLimiterSetReleaseLimiter(ProcLimiterSet *currProcLimiterSet, enum ProcLimiterId plimiterId);
void OsProcessLinkProcLimiterSet(LosProcessCB *processCB);
void UpdateMigrateStatus(bool status);
void OsProcLimiterSetMigrate(void);

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* _LOS_PLIMITS_H */
